Channel-quality dependent earliest deadline due fair scheduling schemes for wireless multimedia networks

— Providing delay guarantees to time-sensitive traffic in future wireless multimedia networks is a challenging issue. This is due to the time-varying link capacities and the variety of real-time applications expected to be handled by such networks. We propose and evaluate the performance of two channel-aware scheduling schemes that are capable of providing such delay guarantees in wireless networks. In the first proposed scheme, the Channel-Dependent Earliest-Due-Date (CD-EDD) discipline, the expiration time of the head of line packets of users' queues is taken into consideration in conjunction with the current channel states of users in the scheduling decision. This policy attempts to guarantee the targeted delay bounds in addition to exploiting multiuser diversity to make best utilization of the variable capacity of the channel. In the second scheme we attempt to ensure that the number of packets dropped due to deadline violation are fairly distributed among the users. The pro...

• Type: Conference
• Year: 2004
• Where: MSWIM
• Authors: Ahmed K. F. Khattab, Khaled M. F. Elsayed
• Keywords: Channel-aware Scheduling Schemes, Delay Guarantees, Modelling And Simulation, MSWIM 2004, Scheduling Schemes